High-tension insulator.



B. D. KENNBY.

HIGH TENSION INSULATOR.

APPLIOATIUB FILED JUNI: 29, 1911.

1,010,926. ,Patented Dec.5,1911

INI/EN TOR lill/ll.'

Bsmrnmm D-Ifcmvsy UNITED STATES PATENT OFFICE.

BENJAMIN D. KENNEY, OF EAST LIVERPOOL, OHIO, ASSIGNOR TO THE It. THOMAS AND SONS COMPANY, OF EAST LIVERPOOL, OHIO, A CORPORATION OF OHIO.

HIGH-TENSION INSULATOR.

Specification of Letters Patent.

Patented Dec. 5, 1911.

To all whom it may concern:

Be it known that I, BENJAMIN D. KEN- NEY, a citizen of the United States of America,`residin in the city of East Llverpool, county of olumbiana, State of Ohio, have invented certain new and usefulv Improvements in High-Tension Insulators, of which the following is a specification.

My invention relates to the construction of insulators for high tension transmission lines, and more particularly insulators which are adapted for the connection or suspension of the electrical conductors to or from the supporting posts or towers.

My improvements are also applicable to strain insulators.

The main object of my invention is to rovide a series of insulator units which can e uickly and easily coupled together, and

yet eave no'danger of their accidentally becomin uncoupled, althou h allowing a sui cient, reedom of motion etween the units.

A further obj ect is to so construct the coupling that there shall be no projecting points to tend to cause arcing or electrical discharges.

These objects I attain by the construction which I will now describe.

In the accompanying drawings, Figure 1 is a side elevation showing two united insulator units; Fig. 2 is a side elevation, drawn to alarger scale, of the joint between the cap of one-insulator unit and the shank of the next; Fig. Sisaview at right angles to Fig. 2, partly in section; Fig. 4 is a detached view of the connecting pin; Fig. 5 is a sectional view showing the connecting pin in the eye of the shank; Figs. 6, 7 8 and 9 are views of a modification, the views respectively corresponding to Figs. 2, 3, 4 and 5, except that Fig. 7 shows also in section the insulator.

Each insulator unit comprises an insulating body- A of any desired shape, provided` with a hollow cup-shaped central part B (F ig. 7), into the center of which is cemented the head of a coupling rod E, while to the outside is cemented or otherwise secured a metal cap D, provided with means for coupling it to the rod E of the next insulator unit. In-Y the drawing I have shown the circular insulating body as of a Hat single Petticoat, but'the shape and the number of the petticoats may be varied, as found desirable.

To unite together a cap D of one insulator unit with the coupling rod E` of the next unit, I provide on one of these parts, preferably the ca a pair of eyed lugs, and on the other, pre erably the rod, an eyed endto enter between the lugs, and through the eyes I pass a securing or hinging bolt with a locking projection. In Figs. 1 to 5, the cap D is shown as with two lugs d, d with transverse eyes in them to receive the hingiiig bolt F, and the end of the next coupling rod r,E is adapted to enter with some freedom of lay between said lugs on the cap, and the Boltpasses through this e e in the coupling rod as well as the eyes in t e lugs on the cap. The connectin bolt in this instance is made with two locking projections f at opposite ends, Fig. 4, being circular in outline to fit snugly in the circular eyes in the lugs d, d1, While the reduced diameter of the body of the bolt lies in the eye of the coupling rod, Figs. 3 and 5. This eye in the coupling rod is at least of suilicient size to permit the enlarged end of the bolt to pass through it, and may be of just that size and shape, but I prefer to make it of the shape shown in Fig. 5, with a notch at the bottom to receive and t the bolt, when the units have been joined and the strain put on the series, bringing the parts to their normal relative positions. Then the described joint will be as illustrated in Figs. 3 and 5, and the locking bolt will be held by the end of the coupling rod and revented from lateral escape. But when 1t is desired to remove a unit for repair or to replace a broken part, all that is necessary 1s to take the longitudinal strain from the series, and move the end of the coupling` rod E toward the cap D of the next unit, to a sufficient extent to permit the collars f of the locking bolt to clear the end of the rod and be ushed or knocked out through the eye of t e rod.

In the modification, Figs. 6 to 9, the securing boltvF1 has a single central locking projectionfl, Fig. 8, and the eye in the end of the coupling rod E1` ma be made circular, as shown in Fig. 9, o a diameter large enough to receive that part of the bolt which carries the projection f1. The eyes in the lugs d1 are preferably of the oval sha e shown in Fig. 6, with the long axis of t e oval vertical and suitable to permit the bolt F1 with its projection f1 to be passed thto `h one or both of the eyes. It will readily e understood that the bolt F1 is passed into positionto unite the coupling rod E1 and ca. D when the two are drawn toward esc other and when the strain is put on the series `of units to bring them to their normal relative positions, t pin F1 is thereby caused to turn to the position shown in Fi s. 7 end 9, with the locking projection f1 eld between the lugs on the cap and its removal thereby prevented. When it is desired to detach the parts thus connected, the bolt F1 is turned to the position shown in Fig. 8, as by applying a. screw driver-to the notch 2 in the end, and then the bolt can be wit drawn laterally. Y

I claim es my invention 1. Insulator units, each having an insuleting body, caflend couipling rod, in combination with a inging olt to hinge the coupling rod Aof one unit to the cap of the next, said hing-ing bolt having a locking projection, an said cap and bolt havlng eyes, throu h which the bolt with its rejection may passed when the rod ang c'ap are drawn toward each other in abnormal rela.-

tive positions but locking the bolt when said parts are in their normal relative positions under strain.

2. Insulator units, each consistin of a metallic ca. an insulator secured t erein, and a coup ing rod secured in the insulator, in combination with e. hinging bolt to hinge the couplin rod of one unit to the ca, of the next, said hinging bolt having a. locEing projection,'and said capend bolt having eyes, through which the bolt Withits pro- ,35 jection may be passed when the rod and ce are drawn toward each other-in abnorme relative positions but locking the bolt when said parts are in their normal relative positions under strain.

In testimony whereof I have signedmy neme to this specification, in the presence of two subscribing witnesses.

BENJAMIN D. KENNEY. 

